body {
  padding: 0;
  margin: 0;
  color: linen;
}

canvas {
  background: #000;
}

#buffer {
  display: none;
}

#z_center {
  text-align: center;
  position: absolute;
  right: 0;
  top: 0;
  color: #000;
}

#capture {
  padding: 10px;
  background: #4554da;
  width: 170px;
  position: absolute;
  left: -100%;
}

* {
  box-sizing: border-box;
}
